Or, perhaps a little more natural, "Worked with a team to conduct research on ...". or "Worked with a team in conducting research on ..." Or "Worked as part of a team conducting research on ..." I think I like this last version best.

You've mentioned several different phrases, and they don't all have the same meaning. "Cooperated with a team" or "collaborated with a team" suggests that you in some way aided the team or that you worked independently of the team; you were not a member of the team. "Worked as part of a team" or "worked on a team" says that you were a member of the team. What was your role in the research?